(T

Parameter

Conditions

Limits

Units

LM556C

Min

Typ

Max

Output Voltage Drop (High)

I

12.5

V

I

12.75

13.3

V

V

2.75

3.3

V

Rise Time of Output

100

ns

Fall Time of Output

100

ns

Matching Characteristics

(Note 8)

Initial Timing Accuracy

0.1

2.0

%

Timing Drift with Temperature

ppm/˚C

Drift with Supply Voltage

0.2

0.5

%/V

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.

Note 2: For operating at elevated temperatures the device must be derated based on a +150˚C maximum junction temperature and a thermal resistance of 77˚C/W

(Plastic Dip), and 110˚C/W (SO-14 Narrow).

Note 5: As reset voltage lowers, timing is inhibited and then the output goes low.

Note 7: No protection against excessive pin 1, 13 current is necessary providing the package dissipation rating will not be exceeded.

Note 8: Matching characteristics refer to the difference between performance characteristics of each timer section.

Note 9: Refer to RETS556X drawing of military LM556J versions.

Typical Performance Characteristics

Minimum Pulse Width Required for Triggering

DS007852-3

Supply Current vs. Supply Voltage (Each Section)

DS007852-4

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